page_title: Novator KS-172
section_title: Design
hierarchical_section_title: Novator KS-172 / Design
caption_attribution_description: English: Seeker 9B-1103M of AAM-L missile Русский: Активаная радиолокационная головка самонаведения 9Б-1103М ракеты КС-172 (AAM-L). МАКС-2009
context_page_description: The Novator KS-172 is a Russian air-to-air missile designed as an "AWACS killer" at ranges up to 400 km. The missile has had various names during its history, including K-100, Izdeliye 172, AAM-L, KS–172, KS-1, 172S-1 and R-172. The airframe appears to have been derived from the 9K37 Buk surface-to-air missile but development stalled in the mid-1990s for lack of funds. It appears to have restarted in 2004 after a deal with India, who wants to produce the missile in India for their Su-30MKI fighters. It is the heaviest air-to-air missile ever produced.
context_section_description: The mockup shown in 1993 had a strong resemblance to the Buk airframe, but since the Indians became involved there have been some changes. An Indian magazine gave the specifications of the KS–172 in April 2004 as a core 6.01 m long and 40 cm in diameter with a wingspan of 61 cm, with a booster of 1.4 m, and 748 kg total weight. It had a solid fuel tandem rocket booster capable of speeds up to 4,000 km/h (2,500 mph), 12g manoevring, and an adaptive HE fragmentation warhead. Development would concentrate on the seeker head, autopilot, resistance to jamming and a steering system with 3D thrust vector control (TVC).
  In May 2005 it was reported that there were two versions, with and without a rocket booster, with ranges of 400 km and 300 km respectively. At the MAKS (air show) in August 2005, a range of 300 km was quoted for a streamlined missile with a small booster and fins on both booster and fuselage. However the model shown at the 2007 MAKS airshow under the name K-100 was closer to the original 1993 mockup in the photo above, with different-shaped fins that were further up the fuselage, and an even larger booster with TVC vents. At the same show it was shown under the wing of a Su-35BM, implying that at least two could be carried by Flanker-class aircraft rather than just one on the centreline.
  Guidance is by inertial navigation until the missile is close enough to the target to use active radar for terminal homing. The K-100 has an enlarged (350 mm (14 in)) derivative of the Agat 9B-1103M seeker used in the R-27 (air-to-air missile) (AA-10 'Alamo').  It has a lock-on range of 40 km (22 nmi), described by an Agat designer as "one fifth or less of the overall range".
caption: 9B-1103M Seeker head
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